Finding the Fourth Proportional to 10,931,459.58, 16,384,143.84 and 5,087,781.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,931,459.58 : 16,384,143.84 = 5,087,781.78 : x
2. Step 2: Convert to fraction form
   10,931,459.58/16,384,143.84 = 5,087,781.78/x
3. Step 3: Cross multiply
   10,931,459.58x = 16,384,143.84 × 5,087,781.78
4. Step 4: Simplify right side
   10,931,459.58x = 83,358,948,510,051.23
5. Step 5: Solve for x
   x = 83,358,948,510,051.23/10,931,459.58
6. Step 6: Final answer
   x = 7,625,600.95