Finding the Fourth Proportional to 11,150,721.52, 15,393,402.37 and 7,478,294.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,150,721.52 : 15,393,402.37 = 7,478,294.72 : x
2. Step 2: Convert to fraction form
   11,150,721.52/15,393,402.37 = 7,478,294.72/x
3. Step 3: Cross multiply
   11,150,721.52x = 15,393,402.37 × 7,478,294.72
4. Step 4: Simplify right side
   11,150,721.52x = 115,116,399,589,439.47
5. Step 5: Solve for x
   x = 115,116,399,589,439.47/11,150,721.52
6. Step 6: Final answer
   x = 10,323,672.72