Finding the Fourth Proportional to 60,885,972.32, 91,328,956.71 and 28,086,836.98

Step by Step Solution

1. Step 1: Write the proportion equation
   60,885,972.32 : 91,328,956.71 = 28,086,836.98 : x
2. Step 2: Convert to fraction form
   60,885,972.32/91,328,956.71 = 28,086,836.98/x
3. Step 3: Cross multiply
   60,885,972.32x = 91,328,956.71 × 28,086,836.98
4. Step 4: Simplify right side
   60,885,972.32x = 2,565,141,518,886,734
5. Step 5: Solve for x
   x = 2,565,141,518,886,734/60,885,972.32
6. Step 6: Final answer
   x = 42,130,254.66