Finding the Fourth Proportional to 139,978,745.10, 209,968,117.65 and 111,068,354.70

Step by Step Solution

1. Step 1: Write the proportion equation
   139,978,745.10 : 209,968,117.65 = 111,068,354.70 : x
2. Step 2: Convert to fraction form
   139,978,745.10/209,968,117.65 = 111,068,354.70/x
3. Step 3: Cross multiply
   139,978,745.10x = 209,968,117.65 × 111,068,354.70
4. Step 4: Simplify right side
   139,978,745.10x = 23,320,813,366,841,532
5. Step 5: Solve for x
   x = 23,320,813,366,841,532/139,978,745.10
6. Step 6: Final answer
   x = 166,602,532.05