Finding the Fourth Proportional to 12,807,796.06, 17,674,897.98 and 7,006,453.21

Step by Step Solution

1. Step 1: Write the proportion equation
   12,807,796.06 : 17,674,897.98 = 7,006,453.21 : x
2. Step 2: Convert to fraction form
   12,807,796.06/17,674,897.98 = 7,006,453.21/x
3. Step 3: Cross multiply
   12,807,796.06x = 17,674,897.98 × 7,006,453.21
4. Step 4: Simplify right side
   12,807,796.06x = 123,838,345,688,393.52
5. Step 5: Solve for x
   x = 123,838,345,688,393.52/12,807,796.06
6. Step 6: Final answer
   x = 9,668,981.70