Finding the Fourth Proportional to 9,780,411.60, 14,656,620.60 and 7,201,501.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,780,411.60 : 14,656,620.60 = 7,201,501.20 : x
2. Step 2: Convert to fraction form
   9,780,411.60/14,656,620.60 = 7,201,501.20/x
3. Step 3: Cross multiply
   9,780,411.60x = 14,656,620.60 × 7,201,501.20
4. Step 4: Simplify right side
   9,780,411.60x = 105,549,670,838,844.72
5. Step 5: Solve for x
   x = 105,549,670,838,844.72/9,780,411.60
6. Step 6: Final answer
   x = 10,791,945.69