Finding the Fourth Proportional to 12,402,853.82, 17,112,091.48 and 7,242,492.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,402,853.82 : 17,112,091.48 = 7,242,492.86 : x
2. Step 2: Convert to fraction form
   12,402,853.82/17,112,091.48 = 7,242,492.86/x
3. Step 3: Cross multiply
   12,402,853.82x = 17,112,091.48 × 7,242,492.86
4. Step 4: Simplify right side
   12,402,853.82x = 123,934,200,259,900.14
5. Step 5: Solve for x
   x = 123,934,200,259,900.14/12,402,853.82
6. Step 6: Final answer
   x = 9,992,393.86