Finding the Fourth Proportional to 9,870.59, 14,793.12 and 7,385.91

Step by Step Solution

1. Step 1: Write the proportion equation
   9,870.59 : 14,793.12 = 7,385.91 : x
2. Step 2: Convert to fraction form
   9,870.59/14,793.12 = 7,385.91/x
3. Step 3: Cross multiply
   9,870.59x = 14,793.12 × 7,385.91
4. Step 4: Simplify right side
   9,870.59x = 109,260,652.94
5. Step 5: Solve for x
   x = 109,260,652.94/9,870.59
6. Step 6: Final answer
   x = 11,069.32