Finding the Fourth Proportional to 11,139,980.58, 15,378,209.37 and 7,016,071.86

Step by Step Solution

1. Step 1: Write the proportion equation
   11,139,980.58 : 15,378,209.37 = 7,016,071.86 : x
2. Step 2: Convert to fraction form
   11,139,980.58/15,378,209.37 = 7,016,071.86/x
3. Step 3: Cross multiply
   11,139,980.58x = 15,378,209.37 × 7,016,071.86
4. Step 4: Simplify right side
   11,139,980.58x = 107,894,622,018,045.33
5. Step 5: Solve for x
   x = 107,894,622,018,045.33/11,139,980.58
6. Step 6: Final answer
   x = 9,685,351.00