Finding the Fourth Proportional to 56,854,105.74, 78,458,665.91 and 30,748,623.57

Step by Step Solution

1. Step 1: Write the proportion equation
   56,854,105.74 : 78,458,665.91 = 30,748,623.57 : x
2. Step 2: Convert to fraction form
   56,854,105.74/78,458,665.91 = 30,748,623.57/x
3. Step 3: Cross multiply
   56,854,105.74x = 78,458,665.91 × 30,748,623.57
4. Step 4: Simplify right side
   56,854,105.74x = 2,412,495,983,717,238.50
5. Step 5: Solve for x
   x = 2,412,495,983,717,238.50/56,854,105.74
6. Step 6: Final answer
   x = 42,433,100.52