Finding the Fourth Proportional to 130,744,139.58, 180,435,068.23 and 72,006,789.51

Step by Step Solution

1. Step 1: Write the proportion equation
   130,744,139.58 : 180,435,068.23 = 72,006,789.51 : x
2. Step 2: Convert to fraction form
   130,744,139.58/180,435,068.23 = 72,006,789.51/x
3. Step 3: Cross multiply
   130,744,139.58x = 180,435,068.23 × 72,006,789.51
4. Step 4: Simplify right side
   130,744,139.58x = 12,992,549,978,619,414
5. Step 5: Solve for x
   x = 12,992,549,978,619,414/130,744,139.58
6. Step 6: Final answer
   x = 99,373,861.19