Finding the Fourth Proportional to 101,068.16, 139,477.41 and 55,130.31

Step by Step Solution

1. Step 1: Write the proportion equation
   101,068.16 : 139,477.41 = 55,130.31 : x
2. Step 2: Convert to fraction form
   101,068.16/139,477.41 = 55,130.31/x
3. Step 3: Cross multiply
   101,068.16x = 139,477.41 × 55,130.31
4. Step 4: Simplify right side
   101,068.16x = 7,689,432,851.30
5. Step 5: Solve for x
   x = 7,689,432,851.30/101,068.16
6. Step 6: Final answer
   x = 76,081.66