Finding the Fourth Proportional to 129,764,123.60, 194,756,410.20 and 53,142,141.20

Step by Step Solution

1. Step 1: Write the proportion equation
   129,764,123.60 : 194,756,410.20 = 53,142,141.20 : x
2. Step 2: Convert to fraction form
   129,764,123.60/194,756,410.20 = 53,142,141.20/x
3. Step 3: Cross multiply
   129,764,123.60x = 194,756,410.20 × 53,142,141.20
4. Step 4: Simplify right side
   129,764,123.60x = 10,349,772,650,453,520
5. Step 5: Solve for x
   x = 10,349,772,650,453,520/129,764,123.60
6. Step 6: Final answer
   x = 79,758,352.03