Finding the Fourth Proportional to 42,773,207.66, 64,163,581.78 and 12,068,055.98

Step by Step Solution

1. Step 1: Write the proportion equation
   42,773,207.66 : 64,163,581.78 = 12,068,055.98 : x
2. Step 2: Convert to fraction form
   42,773,207.66/64,163,581.78 = 12,068,055.98/x
3. Step 3: Cross multiply
   42,773,207.66x = 64,163,581.78 × 12,068,055.98
4. Step 4: Simplify right side
   42,773,207.66x = 774,329,696,798,348.12
5. Step 5: Solve for x
   x = 774,329,696,798,348.12/42,773,207.66
6. Step 6: Final answer
   x = 18,103,147.72