Finding the Fourth Proportional to 13,112,921.55, 18,095,384.71 and 7,232,788.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,112,921.55 : 18,095,384.71 = 7,232,788.72 : x
2. Step 2: Convert to fraction form
   13,112,921.55/18,095,384.71 = 7,232,788.72/x
3. Step 3: Cross multiply
   13,112,921.55x = 18,095,384.71 × 7,232,788.72
4. Step 4: Simplify right side
   13,112,921.55x = 130,880,094,414,548.47
5. Step 5: Solve for x
   x = 130,880,094,414,548.47/13,112,921.55
6. Step 6: Final answer
   x = 9,981,001.86