Finding the Fourth Proportional to 139,980,404.10, 209,970,606.15 and 111,070,013.70

Step by Step Solution

1. Step 1: Write the proportion equation
   139,980,404.10 : 209,970,606.15 = 111,070,013.70 : x
2. Step 2: Convert to fraction form
   139,980,404.10/209,970,606.15 = 111,070,013.70/x
3. Step 3: Cross multiply
   139,980,404.10x = 209,970,606.15 × 111,070,013.70
4. Step 4: Simplify right side
   139,980,404.10x = 23,321,438,101,677,804
5. Step 5: Solve for x
   x = 23,321,438,101,677,804/139,980,404.10
6. Step 6: Final answer
   x = 166,605,020.55