Finding the Fourth Proportional to 53,604,638.60, 80,415,926.42 and 42,089,641.34

Step by Step Solution

1. Step 1: Write the proportion equation
   53,604,638.60 : 80,415,926.42 = 42,089,641.34 : x
2. Step 2: Convert to fraction form
   53,604,638.60/80,415,926.42 = 42,089,641.34/x
3. Step 3: Cross multiply
   53,604,638.60x = 80,415,926.42 × 42,089,641.34
4. Step 4: Simplify right side
   53,604,638.60x = 3,384,677,500,429,102.50
5. Step 5: Solve for x
   x = 3,384,677,500,429,102.50/53,604,638.60
6. Step 6: Final answer
   x = 63,141,503.97