Finding the Fourth Proportional to 17,420,308.79, 26,128,773.52 and 5,289,877.17

Step by Step Solution

1. Step 1: Write the proportion equation
   17,420,308.79 : 26,128,773.52 = 5,289,877.17 : x
2. Step 2: Convert to fraction form
   17,420,308.79/26,128,773.52 = 5,289,877.17/x
3. Step 3: Cross multiply
   17,420,308.79x = 26,128,773.52 × 5,289,877.17
4. Step 4: Simplify right side
   17,420,308.79x = 138,218,002,510,323.83
5. Step 5: Solve for x
   x = 138,218,002,510,323.83/17,420,308.79
6. Step 6: Final answer
   x = 7,934,302.67