Finding the Fourth Proportional to 102,990,096, 142,127,838.72 and 55,948,043.52

Step by Step Solution

1. Step 1: Write the proportion equation
   102,990,096 : 142,127,838.72 = 55,948,043.52 : x
2. Step 2: Convert to fraction form
   102,990,096/142,127,838.72 = 55,948,043.52/x
3. Step 3: Cross multiply
   102,990,096x = 142,127,838.72 × 55,948,043.52
4. Step 4: Simplify right side
   102,990,096x = 7,951,774,506,110,101
5. Step 5: Solve for x
   x = 7,951,774,506,110,101/102,990,096
6. Step 6: Final answer
   x = 77,209,118.30