Finding the Fourth Proportional to 13,148,439.42, 18,144,498.22 and 7,347,268.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,148,439.42 : 18,144,498.22 = 7,347,268.83 : x
2. Step 2: Convert to fraction form
   13,148,439.42/18,144,498.22 = 7,347,268.83/x
3. Step 3: Cross multiply
   13,148,439.42x = 18,144,498.22 × 7,347,268.83
4. Step 4: Simplify right side
   13,148,439.42x = 133,312,506,207,796.47
5. Step 5: Solve for x
   x = 133,312,506,207,796.47/13,148,439.42
6. Step 6: Final answer
   x = 10,139,036.42