Finding the Fourth Proportional to 102,713,886.47, 141,746,890.31 and 55,672,451.42

Step by Step Solution

1. Step 1: Write the proportion equation
   102,713,886.47 : 141,746,890.31 = 55,672,451.42 : x
2. Step 2: Convert to fraction form
   102,713,886.47/141,746,890.31 = 55,672,451.42/x
3. Step 3: Cross multiply
   102,713,886.47x = 141,746,890.31 × 55,672,451.42
4. Step 4: Simplify right side
   102,713,886.47x = 7,891,396,863,941,219
5. Step 5: Solve for x
   x = 7,891,396,863,941,219/102,713,886.47
6. Step 6: Final answer
   x = 76,828,919.00