Finding the Fourth Proportional to 8,698,406.27, 12,003,412.07 and 5,215,667.36

Step by Step Solution

1. Step 1: Write the proportion equation
   8,698,406.27 : 12,003,412.07 = 5,215,667.36 : x
2. Step 2: Convert to fraction form
   8,698,406.27/12,003,412.07 = 5,215,667.36/x
3. Step 3: Cross multiply
   8,698,406.27x = 12,003,412.07 × 5,215,667.36
4. Step 4: Simplify right side
   8,698,406.27x = 62,605,804,495,151.15
5. Step 5: Solve for x
   x = 62,605,804,495,151.15/8,698,406.27
6. Step 6: Final answer
   x = 7,197,387.96