Finding the Fourth Proportional to 13,570,025.31, 18,726,779.61 and 7,375,072.01

Step by Step Solution

1. Step 1: Write the proportion equation
   13,570,025.31 : 18,726,779.61 = 7,375,072.01 : x
2. Step 2: Convert to fraction form
   13,570,025.31/18,726,779.61 = 7,375,072.01/x
3. Step 3: Cross multiply
   13,570,025.31x = 18,726,779.61 × 7,375,072.01
4. Step 4: Simplify right side
   13,570,025.31x = 138,111,348,045,515.81
5. Step 5: Solve for x
   x = 138,111,348,045,515.81/13,570,025.31
6. Step 6: Final answer
   x = 10,177,678.00