Finding the Fourth Proportional to 55,167,667.86, 76,128,567.96 and 30,387,321.24

Step by Step Solution

1. Step 1: Write the proportion equation
   55,167,667.86 : 76,128,567.96 = 30,387,321.24 : x
2. Step 2: Convert to fraction form
   55,167,667.86/76,128,567.96 = 30,387,321.24/x
3. Step 3: Cross multiply
   55,167,667.86x = 76,128,567.96 × 30,387,321.24
4. Step 4: Simplify right side
   55,167,667.86x = 2,313,343,250,141,691
5. Step 5: Solve for x
   x = 2,313,343,250,141,691/55,167,667.86
6. Step 6: Final answer
   x = 41,932,953.48