Finding the Fourth Proportional to 48,386,081.60, 72,579,123.20 and 48,386,081.60

Step by Step Solution

1. Step 1: Write the proportion equation
   48,386,081.60 : 72,579,123.20 = 48,386,081.60 : x
2. Step 2: Convert to fraction form
   48,386,081.60/72,579,123.20 = 48,386,081.60/x
3. Step 3: Cross multiply
   48,386,081.60x = 72,579,123.20 × 48,386,081.60
4. Step 4: Simplify right side
   48,386,081.60x = 3,511,819,377,611,653.50
5. Step 5: Solve for x
   x = 3,511,819,377,611,653.50/48,386,081.60
6. Step 6: Final answer
   x = 72,579,123.20