Finding the Fourth Proportional to 28,271,423.35, 42,402,086.55 and 7,521,980.69

Step by Step Solution

1. Step 1: Write the proportion equation
   28,271,423.35 : 42,402,086.55 = 7,521,980.69 : x
2. Step 2: Convert to fraction form
   28,271,423.35/42,402,086.55 = 7,521,980.69/x
3. Step 3: Cross multiply
   28,271,423.35x = 42,402,086.55 × 7,521,980.69
4. Step 4: Simplify right side
   28,271,423.35x = 318,947,676,350,813.94
5. Step 5: Solve for x
   x = 318,947,676,350,813.94/28,271,423.35
6. Step 6: Final answer
   x = 11,281,627.83