Finding the Fourth Proportional to 10,474,978.60, 14,462,111.82 and 7,172,798.68

Step by Step Solution

1. Step 1: Write the proportion equation
   10,474,978.60 : 14,462,111.82 = 7,172,798.68 : x
2. Step 2: Convert to fraction form
   10,474,978.60/14,462,111.82 = 7,172,798.68/x
3. Step 3: Cross multiply
   10,474,978.60x = 14,462,111.82 × 7,172,798.68
4. Step 4: Simplify right side
   10,474,978.60x = 103,733,816,572,508.39
5. Step 5: Solve for x
   x = 103,733,816,572,508.39/10,474,978.60
6. Step 6: Final answer
   x = 9,903,009.88