Finding the Fourth Proportional to 102,477,314.72, 141,404,727.84 and 61,215,448.16

Step by Step Solution

1. Step 1: Write the proportion equation
   102,477,314.72 : 141,404,727.84 = 61,215,448.16 : x
2. Step 2: Convert to fraction form
   102,477,314.72/141,404,727.84 = 61,215,448.16/x
3. Step 3: Cross multiply
   102,477,314.72x = 141,404,727.84 × 61,215,448.16
4. Step 4: Simplify right side
   102,477,314.72x = 8,656,153,786,668,428
5. Step 5: Solve for x
   x = 8,656,153,786,668,428/102,477,314.72
6. Step 6: Final answer
   x = 84,468,975.50